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Sharpening stone vs. Diamond sharpener

Discussion in 'ROSarms International' started by kancler, Oct 14, 2008.

  1. kancler

    kancler Moderator Moderator

    Mar 21, 2005

    What is your opinion on this question?

    What are the advantages or disadvantages of using Diamond sharpening stones vs. Regular sharpening stones?

    I do prefer and recommend to use Diamonds on our knives. a few reasons:

    1. Easy to use,
    2. Small and flat - easy to carry.
    3. Cheap and reliable. - can drop without any problems :)
  2. Esav Benyamin

    Esav Benyamin MidniteSuperMod Staff Member Super Mod

    Apr 6, 2000
    Diamond is best, but new users have to be careful not to overdo it. Diamond can be very aggressive. Actually, any sharpening medium should be used gently, not pressing too hard, or the edge can be damaged. This is the biggest problem with those small, preset carbide sharpeners. Too many people think dragging the blade through them hard will sharpen it faster. Instead, it chips the edge.

    Besides diamond, I also like ceramic, for touchups in the field and for finishing an edge.
  3. Culpeper

    Culpeper Banned BANNED

    Jul 1, 2007
    I learned that the hard way, Esav.:)
  4. moonwilson


    Aug 10, 2006
    It kind of depends on what you are doing. I like diamond because it's easier and less messy to use. Diamond seems to work better with stainless. And diamond is definitely better in the field. Traditional stones are kind of a pain, you have to be careful to keep them wet so they don't clog up, which makes them messy, and you don't want to wear them unevenly, and you can't drop 'em.
    But on carbon blades, old-school stones do a great job.

    I need to find a super-fine diamond sharpener. Once I get past "fine", I just use 1500 or 2500 grit sandpaper. Does anyone have any recommendations?
  5. Lorien

    Lorien Moderator Moderator

    Dec 5, 2005
    Fixing problems on your edge is a pretty quick thing with diamond hones, but I haven't yet found a diamond hone which can polish the bevel as well as a ceramic. I know that they're available, but for a bench stone they are extraordinarily expensive in that fine a grit.

    Think of sharpeners more in terms of grittiness then the material they're made from. Diamond works great for removing a relatively large amount of material, and when it clogs it's easy to clean. That, and its durability are its strengths. This makes it ideal to carry in the field.

    Ceramic clogs faster and is harder to clean, so removing lots of material is not its strength, nor is durability. But it is aggressive enough and is available in very fine, uniform grit. Generally less expensive than diamond, all things being equal.

    In conjunction, these 'new' sharpening media can perform almost as good a job as quality whetstones, more easily, more compact and with less mess.

    However, nothing can rival good stones and a practised hand. Good sharpening is all about experience and patience really, and has less to do with technology than most people think. That, and knowing the properties of the steel alloy you're sharpening will always ensure your knives are not just sharp enough, but sharp.

    What I use are DMT diafold sharpeners, (medium/fine, extra fine), Spyderco ceramic rods, medium and fine, and a Spyderco extra fine bench stone. Working from the coarsest diamond hone down to fine ceramic, then extra fine ceramic provides me with a long lasting, highly polished edge which is very keen.

    Rosarms bevels are extremely easy to polish, but it is difficult to remove the wire-edge due I think to the titanium content of the steel alloy. I usually do the regular sharpening procedure from coarse to fine, but then go back with either a medium grit ceramic or fine grit diamond to remove the wire-edge, then finish the edge with the extra fine ceramic bench stone. A good edge on a Rosarms knife will not degrade very easily, and I have found the steel alloy used to be one of the best I've used ever.
  6. Irish Sentry

    Irish Sentry

    Feb 9, 2005
    Just curious, do you use a stropping action to take the wire edge off?
  7. Lorien

    Lorien Moderator Moderator

    Dec 5, 2005
    no. If a wire forms, I go back and forth between a heavy grit and a fine grit until I feel it fall away.

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